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经营范围
发明名称
DRILLING RIG
摘要
申请公布号
SU1548397(A1)
申请公布日期
1990.03.07
申请号
SU19884426267
申请日期
1988.05.17
申请人
VNI PK I NEFTYANOGO MASHINOSTROENIYA
发明人
DEMIN ALEKSANDR V,SU;KORNYUSHENKO SERGEJ I,SU;MARTYNOV VLADIMIR N,SU;SUDNITSYN VALENTIN N,SU;TSAREGRADSKIJ YURIJ P,SU
分类号
E21B7/02;E21B19/14
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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